there is a vacancy as you watched the regular host, robin roberts is away on medical leave. so brian skelter for "the new york times," he's been writing about this and all things tv and morning show and brian, good to have you back. >> thanks. >> is this not potential future first lady as a guest co-host, is this not unprecedented? >> i come up with one precedent for it, laura bush once was on one of the morning shows, sort of kind of guest hosting, but i think ann romney will be more of a special guest. abc says she won't quite be co-hosting, not leading cooking segments, but will be on throughout the 8:00 a.m. hour appearing and hopefully for romney's camp talking up mitt romney's campaign. >> will she -- >> a great opportunity for her. >> will she be sitting alongside george stephanopoulos during the 8:00 hour? >> it sounds like it. "gma" has been having a guest fill in for the last month, some called guest co-hosts, some haven't. stephen colbert was on, the cast of "modern family" took times, all part of a strategy to keep viewers watching "good morning america" while ro